<template>
  <v-chart class="chart" :option="option" />
</template>

<script>
import { use } from "echarts/core";
import { CanvasRenderer } from "echarts/renderers";
import { LineChart } from "echarts/charts";
import {
  TitleComponent,
  TooltipComponent,
  LegendComponent,
  GridComponent,
  DataZoomComponent,
} from "echarts/components";
import VChart from "vue-echarts";
import { ref, defineComponent } from "vue";

use([
  CanvasRenderer,
  CandlestickChart,
  TitleComponent,
  TooltipComponent,
  LegendComponent,
  GridComponent,
  DataZoomComponent,
  LineChart,
]);

export default defineComponent({
  name: "VOL",
  components: {
    VChart,
  },
  setup: () => {
    const upColor = "#ec0000";
    const upBorderColor = "#8A0000";
    const downColor = "#00da3c";
    const downBorderColor = "#008F28";
    const MAlist = [5, 10, 20, 30, 60, 120];

    function splitData(rawData) {
      var categoryData = [];
      var values = [];
      var volumes = [];
      for (var i = 0; i < rawData.length; i++) {
        categoryData.push(rawData[i].splice(0, 1)[0]);
        values.push(rawData[i]);
        volumes.push([
          i,
          rawData[i][4],
          rawData[i][0] > rawData[i][1] ? 1 : -1,
        ]);
      }
      return {
        categoryData,
        values,
        volumes,
      };
    }

    function calculateMA(dayCount) {
      var result = [];
      for (var i = 0, len = data0.values.length; i < len; i++) {
        if (i < dayCount) {
          result.push("-");
          continue;
        }
        var sum = 0;
        for (var j = 0; j < dayCount; j++) {
          sum += data0.values[i - j][1];
        }
        result.push(sum / dayCount);
      }
      return result;
    }

    function MAseries() {
      return MAlist.map((v) => {
        return {
          name: "MA" + v,
          type: "line",
          data: calculateMA(v),
          smooth: true,
          symbol: "none",
          lineStyle: {
            opacity: 0.5,
          },
        };
      });
    }

    function Kseries(type) {
      return {
        name: "日K",
        type: "candlestick",
        data: data0.values,
        itemStyle: {
          color: upColor,
          color0: downColor,
          borderColor: upBorderColor,
          borderColor0: downBorderColor,
        },
        markPoint: {
          label: {
            formatter: function (param) {
              return param != null ? Math.round(param.value) : "";
            },
          },
          data: [
            {
              name: "XX标点",
              coord: ["2013/5/31", 2300],
              value: 2300,
              itemStyle: {
                color: "rgb(41,60,85)",
              },
            },
            {
              name: "highest value",
              type: "max",
              valueDim: "highest",
            },
            {
              name: "lowest value",
              type: "min",
              valueDim: "lowest",
            },
            {
              name: "average value on close",
              type: "average",
              valueDim: "close",
            },
          ],
          tooltip: {
            formatter: function (param) {
              return param.name + "<br>" + (param.data.coord || "");
            },
          },
        },
        markLine: {
          symbol: ["none", "none"],
          data: [
            [
              {
                name: "from lowest to highest",
                type: "min",
                valueDim: "lowest",
                symbol: "circle",
                symbolSize: 10,
                label: {
                  show: false,
                },
                emphasis: {
                  label: {
                    show: false,
                  },
                },
              },
              {
                type: "max",
                valueDim: "highest",
                symbol: "circle",
                symbolSize: 10,
                label: {
                  show: false,
                },
                emphasis: {
                  label: {
                    show: false,
                  },
                },
              },
            ],
            {
              name: "min line on close",
              type: "min",
              valueDim: "close",
            },
            {
              name: "max line on close",
              type: "max",
              valueDim: "close",
            },
          ],
        },
      };
    }

    function getSeries() {
      var series = [Kseries()];
      MAlist.forEach((el) => {
        series.push({
          name: "MA" + el,
          type: "line",
          data: calculateMA(el),
          smooth: true,
          symbol: "none",
          lineStyle: {
            opacity: 0.5,
          },
        });
      });
      return series;
    }

    const data0 = splitData([
      ["2013/1/24", 2320.26, 2320.26, 2287.3, 2362.94],
      ["2013/1/25", 2300, 2291.3, 2288.26, 2308.38],
      ["2013/1/28", 2295.35, 2346.5, 2295.35, 2346.92],
      ["2013/1/29", 2347.22, 2358.98, 2337.35, 2363.8],
      ["2013/1/30", 2360.75, 2382.48, 2347.89, 2383.76],
      ["2013/1/31", 2383.43, 2385.42, 2371.23, 2391.82],
      ["2013/2/1", 2377.41, 2419.02, 2369.57, 2421.15],
      ["2013/2/4", 2425.92, 2428.15, 2417.58, 2440.38],
      ["2013/2/5", 2411, 2433.13, 2403.3, 2437.42],
      ["2013/2/6", 2432.68, 2434.48, 2427.7, 2441.73],
      ["2013/2/7", 2430.69, 2418.53, 2394.22, 2433.89],
      ["2013/2/8", 2416.62, 2432.4, 2414.4, 2443.03],
      ["2013/2/18", 2441.91, 2421.56, 2415.43, 2444.8],
      ["2013/2/19", 2420.26, 2382.91, 2373.53, 2427.07],
      ["2013/2/20", 2383.49, 2397.18, 2370.61, 2397.94],
      ["2013/2/21", 2378.82, 2325.95, 2309.17, 2378.82],
      ["2013/2/22", 2322.94, 2314.16, 2308.76, 2330.88],
      ["2013/2/25", 2320.62, 2325.82, 2315.01, 2338.78],
      ["2013/2/26", 2313.74, 2293.34, 2289.89, 2340.71],
      ["2013/2/27", 2297.77, 2313.22, 2292.03, 2324.63],
      ["2013/2/28", 2322.32, 2365.59, 2308.92, 2366.16],
      ["2013/3/1", 2364.54, 2359.51, 2330.86, 2369.65],
      ["2013/3/4", 2332.08, 2273.4, 2259.25, 2333.54],
      ["2013/3/5", 2274.81, 2326.31, 2270.1, 2328.14],
      ["2013/3/6", 2333.61, 2347.18, 2321.6, 2351.44],
      ["2013/3/7", 2340.44, 2324.29, 2304.27, 2352.02],
      ["2013/3/8", 2326.42, 2318.61, 2314.59, 2333.67],
      ["2013/3/11", 2314.68, 2310.59, 2296.58, 2320.96],
      ["2013/3/12", 2309.16, 2286.6, 2264.83, 2333.29],
      ["2013/3/13", 2282.17, 2263.97, 2253.25, 2286.33],
      ["2013/3/14", 2255.77, 2270.28, 2253.31, 2276.22],
      ["2013/3/15", 2269.31, 2278.4, 2250, 2312.08],
      ["2013/3/18", 2267.29, 2240.02, 2239.21, 2276.05],
      ["2013/3/19", 2244.26, 2257.43, 2232.02, 2261.31],
      ["2013/3/20", 2257.74, 2317.37, 2257.42, 2317.86],
      ["2013/3/21", 2318.21, 2324.24, 2311.6, 2330.81],
      ["2013/3/22", 2321.4, 2328.28, 2314.97, 2332],
      ["2013/3/25", 2334.74, 2326.72, 2319.91, 2344.89],
      ["2013/3/26", 2318.58, 2297.67, 2281.12, 2319.99],
      ["2013/3/27", 2299.38, 2301.26, 2289, 2323.48],
      ["2013/3/28", 2273.55, 2236.3, 2232.91, 2273.55],
      ["2013/3/29", 2238.49, 2236.62, 2228.81, 2246.87],
      ["2013/4/1", 2229.46, 2234.4, 2227.31, 2243.95],
      ["2013/4/2", 2234.9, 2227.74, 2220.44, 2253.42],
      ["2013/4/3", 2232.69, 2225.29, 2217.25, 2241.34],
      ["2013/4/8", 2196.24, 2211.59, 2180.67, 2212.59],
      ["2013/4/9", 2215.47, 2225.77, 2215.47, 2234.73],
      ["2013/4/10", 2224.93, 2226.13, 2212.56, 2233.04],
      ["2013/4/11", 2236.98, 2219.55, 2217.26, 2242.48],
      ["2013/4/12", 2218.09, 2206.78, 2204.44, 2226.26],
      ["2013/4/15", 2199.91, 2181.94, 2177.39, 2204.99],
      ["2013/4/16", 2169.63, 2194.85, 2165.78, 2196.43],
      ["2013/4/17", 2195.03, 2193.8, 2178.47, 2197.51],
      ["2013/4/18", 2181.82, 2197.6, 2175.44, 2206.03],
      ["2013/4/19", 2201.12, 2244.64, 2200.58, 2250.11],
      ["2013/4/22", 2236.4, 2242.17, 2232.26, 2245.12],
      ["2013/4/23", 2242.62, 2184.54, 2182.81, 2242.62],
      ["2013/4/24", 2187.35, 2218.32, 2184.11, 2226.12],
      ["2013/4/25", 2213.19, 2199.31, 2191.85, 2224.63],
      ["2013/4/26", 2203.89, 2177.91, 2173.86, 2210.58],
      ["2013/5/2", 2170.78, 2174.12, 2161.14, 2179.65],
      ["2013/5/3", 2179.05, 2205.5, 2179.05, 2222.81],
      ["2013/5/6", 2212.5, 2231.17, 2212.5, 2236.07],
      ["2013/5/7", 2227.86, 2235.57, 2219.44, 2240.26],
      ["2013/5/8", 2242.39, 2246.3, 2235.42, 2255.21],
      ["2013/5/9", 2246.96, 2232.97, 2221.38, 2247.86],
      ["2013/5/10", 2228.82, 2246.83, 2225.81, 2247.67],
      ["2013/5/13", 2247.68, 2241.92, 2231.36, 2250.85],
      ["2013/5/14", 2238.9, 2217.01, 2205.87, 2239.93],
      ["2013/5/15", 2217.09, 2224.8, 2213.58, 2225.19],
      ["2013/5/16", 2221.34, 2251.81, 2210.77, 2252.87],
      ["2013/5/17", 2249.81, 2282.87, 2248.41, 2288.09],
      ["2013/5/20", 2286.33, 2299.99, 2281.9, 2309.39],
      ["2013/5/21", 2297.11, 2305.11, 2290.12, 2305.3],
      ["2013/5/22", 2303.75, 2302.4, 2292.43, 2314.18],
      ["2013/5/23", 2293.81, 2275.67, 2274.1, 2304.95],
      ["2013/5/24", 2281.45, 2288.53, 2270.25, 2292.59],
      ["2013/5/27", 2286.66, 2293.08, 2283.94, 2301.7],
      ["2013/5/28", 2293.4, 2321.32, 2281.47, 2322.1],
      ["2013/5/29", 2323.54, 2324.02, 2321.17, 2334.33],
      ["2013/5/30", 2316.25, 2317.75, 2310.49, 2325.72],
      ["2013/5/31", 2320.74, 2300.59, 2299.37, 2325.53],
      ["2013/6/3", 2300.21, 2299.25, 2294.11, 2313.43],
      ["2013/6/4", 2297.1, 2272.42, 2264.76, 2297.1],
      ["2013/6/5", 2270.71, 2270.93, 2260.87, 2276.86],
      ["2013/6/6", 2264.43, 2242.11, 2240.07, 2266.69],
      ["2013/6/7", 2242.26, 2210.9, 2205.07, 2250.63],
      ["2013/6/13", 2190.1, 2148.35, 2126.22, 2190.1],
    ]);

    const option = ref({
      tooltip: {
        trigger: "none",
        axisPointer: {
          type: "none",
        },
      },
      legend: {
        data: ["日K", "MA5", "MA10", "MA20", "MA30"],
      },
      grid: {
        left: "5",
        right: "5",
        bottom: "30",
      },
      xAxis: {
        type: "category",
        data: data0.categoryData,
        scale: true,
        boundaryGap: false,
        axisLine: { onZero: false },
        splitLine: { show: false },
        splitNumber: 20,
        min: "dataMin",
        max: "dataMax",
        axisTick: {
          show: false,
        },
      },
      yAxis: {
        scale: true,
        splitArea: {
          show: false,
        },
        axisLabel: {
          show: true,
          inside: true,
        },
      },
      dataZoom: [
        {
          type: "inside",
          start: 50,
          end: 100,
          zoomLock: false,
          moveOnMouseMove: false,
          preventDefaultMouseMove: false,
        },
      ],
      series: getSeries(),
    });

    return { option };
  },
});
</script>

<style scoped>
.chart {
  height: 400px;
}
</style>
